Three-dimensional structure of polystyrene colloidal crystal by synchrotron radiation X-ray phase-contrast computed tomography
文献类型：期刊论文
| 作者 | Fu, YN ; Xie, HL ; Deng, B ; Du, GH ; Chen, RC ; Xiao, TQ |
| 刊名 | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
 |
| 出版日期 | 2014 |
| 卷号 | 115期号:3页码:781—790 |
| 关键词 | OPAL PHOTONIC CRYSTALS VISUALIZATION FABRICATION RETRIEVAL SPHERES OBJECT IMAGE |
| ISSN号 | 0947-8396 |
| 通讯作者 | fuyanan@sinap.ac.cn |
| 英文摘要 | Colloidal crystal with long-range ordered structure has attracted great attention for their applications in various fields. Although perfect colloidal crystals have been achieved by some fabrications for utilization, little is known about their exact structures and internal defects. In this study, we use synchrotron radiation (SR) phase-contrast computed tomography (CT) to noninvasively access the internal structure of polystyrene (PS) colloidal crystals in three dimensions (3D). The phase-attenuation duality Paganin algorithm phase retrieval was employed to achieve a satisfactory contrast and outline of the spheres. After CT reconstruction, the positions of individual PS particles and structural defects are identified in three dimensions, and the local crystal structure is revealed. Further quantitative analysis of the void system in colloidal crystal illustrates that single voids can be mostly attributed to tetrahedron void of sphere close packing, but the interconnected voids with large volume induce a sphere volume fraction of 59.39 % that reflects a metastable glass behavior of colloidal crystal arrangement. The void orientation result reveals that the 3D close-packing difficulty mainly lies in the stacking of interlayer. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336362400011 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14511]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Fu, YN,Xie, HL,Deng, B,et al. Three-dimensional structure of polystyrene colloidal crystal by synchrotron radiation X-ray phase-contrast computed tomography[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2014,115(3):781—790. |
| APA | Fu, YN,Xie, HL,Deng, B,Du, GH,Chen, RC,&Xiao, TQ.(2014).Three-dimensional structure of polystyrene colloidal crystal by synchrotron radiation X-ray phase-contrast computed tomography.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,115(3),781—790. |
| MLA | Fu, YN,et al."Three-dimensional structure of polystyrene colloidal crystal by synchrotron radiation X-ray phase-contrast computed tomography".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 115.3(2014):781—790. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。